SalLayoutGlyphsCache Class Reference

A cache for SalLayoutGlyphs objects. More...

#include <glyphitemcache.hxx>

Collaboration diagram for SalLayoutGlyphsCache:

Classes
struct	CachedGlyphsHash
struct	CachedGlyphsKey
struct	GlyphsCost

Public Member Functions
const SalLayoutGlyphs *	GetLayoutGlyphs (VclPtr< const OutputDevice > outputDevice, const OUString &text, const vcl::text::TextLayoutCache *layoutCache=nullptr)
const SalLayoutGlyphs *	GetLayoutGlyphs (VclPtr< const OutputDevice > outputDevice, const OUString &text, sal_Int32 nIndex, sal_Int32 nLen, tools::Long nLogicWidth=0, const vcl::text::TextLayoutCache *layoutCache=nullptr)
void	clear ()
	SalLayoutGlyphsCache (int size)

Static Public Member Functions
static SalLayoutGlyphsCache *	self ()

Private Types
typedef o3tl::lru_map< CachedGlyphsKey, SalLayoutGlyphs, CachedGlyphsHash, std::equal_to< CachedGlyphsKey >, GlyphsCost >	GlyphsCache

Private Member Functions
	SalLayoutGlyphsCache (const SalLayoutGlyphsCache &)=delete
SalLayoutGlyphsCache &	operator= (const SalLayoutGlyphsCache &)=delete

Private Attributes
GlyphsCache	mCachedGlyphs
std::optional< CachedGlyphsKey >	mLastTemporaryKey
SalLayoutGlyphs	mLastTemporaryGlyphs
std::optional< CachedGlyphsKey >	mLastSubstringKey

Detailed Description

A cache for SalLayoutGlyphs objects.

Allows caching for OutputDevice::DrawText() and similar calls. Pass the text and the output device for the call to OutputDevice::ImplLayout(). Items are cached per output device and its font. If something more changes, call clear().

Definition at line 43 of file glyphitemcache.hxx.

Member Typedef Documentation

GlyphsCache

typedef o3tl::lru_map<CachedGlyphsKey, SalLayoutGlyphs, CachedGlyphsHash, std::equal_to<CachedGlyphsKey>, GlyphsCost> SalLayoutGlyphsCache::GlyphsCache

private

Definition at line 95 of file glyphitemcache.hxx.

Constructor & Destructor Documentation

SalLayoutGlyphsCache() [1/2]

SalLayoutGlyphsCache::SalLayoutGlyphsCache ( int  size )

inline

Definition at line 61 of file glyphitemcache.hxx.

References size.

SalLayoutGlyphsCache() [2/2]

SalLayoutGlyphsCache::SalLayoutGlyphsCache ( const SalLayoutGlyphsCache &  )

privatedelete

Member Function Documentation

clear()

void SalLayoutGlyphsCache::clear

(

)

Definition at line 233 of file impglyphitem.cxx.

References o3tl::lru_map< typename Key, typename Value, class KeyHash, class KeyEqual, class ValueSize >::clear(), and mCachedGlyphs.

GetLayoutGlyphs() [1/2]

const SalLayoutGlyphs * SalLayoutGlyphsCache::GetLayoutGlyphs ( VclPtr< const OutputDevice >  outputDevice, const OUString &  text, const vcl::text::TextLayoutCache *  layoutCache = nullptr  )

inline

Definition at line 48 of file glyphitemcache.hxx.

References text().

Referenced by GetLayoutGlyphs().

GetLayoutGlyphs() [2/2]

const SalLayoutGlyphs * SalLayoutGlyphsCache::GetLayoutGlyphs	(	VclPtr< const OutputDevice >	outputDevice,
		const OUString &	text,
		sal_Int32	nIndex,
		sal_Int32	nLen,
		tools::Long	nLogicWidth = 0,
		const vcl::text::TextLayoutCache *	layoutCache = nullptr
	)

Definition at line 347 of file impglyphitem.cxx.

References o3tl::lru_map< typename Key, typename Value, class KeyHash, class KeyEqual, class ValueSize >::begin(), vcl::text::BiDiStrong, checkGlyphsEqual(), vcl::text::TextLayoutCache::Create(), o3tl::lru_map< typename Key, typename Value, class KeyHash, class KeyEqual, class ValueSize >::end(), o3tl::lru_map< typename Key, typename Value, class KeyHash, class KeyEqual, class ValueSize >::find(), GetLayoutGlyphs(), OutputDevice::GetLayoutMode(), GlyphItemsOnly, SalLayoutGlyphs::Impl(), OutputDevice::ImplLayout(), o3tl::lru_map< typename Key, typename Value, class KeyHash, class KeyEqual, class ValueSize >::insert(), SalLayoutGlyphs::IsValid(), makeGlyphsSubset(), mCachedGlyphs, mLastSubstringKey, mLastTemporaryGlyphs, mLastTemporaryKey, nIndex, Point, pos, and text().

operator=()

SalLayoutGlyphsCache & SalLayoutGlyphsCache::operator= ( const SalLayoutGlyphsCache &  )

privatedelete

self()

SalLayoutGlyphsCache * SalLayoutGlyphsCache::self ( )

static

Definition at line 235 of file impglyphitem.cxx.

References vcl::DeleteOnDeinit< T >::get(), and utl::ConfigManager::IsFuzzing().

Referenced by vcl::PDFWriterImpl::drawStretchText(), vcl::PDFWriterImpl::drawText(), vcl::PDFWriterImpl::drawTextArray(), and StatusBar::SetItemText().

Member Data Documentation

mCachedGlyphs

GlyphsCache SalLayoutGlyphsCache::mCachedGlyphs

private

Definition at line 96 of file glyphitemcache.hxx.

Referenced by clear(), and GetLayoutGlyphs().

mLastSubstringKey

std::optional<CachedGlyphsKey> SalLayoutGlyphsCache::mLastSubstringKey

private

Definition at line 101 of file glyphitemcache.hxx.

Referenced by GetLayoutGlyphs().

mLastTemporaryGlyphs

SalLayoutGlyphs SalLayoutGlyphsCache::mLastTemporaryGlyphs

private

Definition at line 99 of file glyphitemcache.hxx.

Referenced by GetLayoutGlyphs().

mLastTemporaryKey

std::optional<CachedGlyphsKey> SalLayoutGlyphsCache::mLastTemporaryKey

private

Definition at line 98 of file glyphitemcache.hxx.

Referenced by GetLayoutGlyphs().

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The documentation for this class was generated from the following files:

• glyphitemcache.hxx
• impglyphitem.cxx